肘关节尺侧副韧带前束等长重建的定位点解剖研究

目的　通过解剖研究探讨肘关节尺侧副韧带前束等长重建的最佳定位点。 方法　 8具成人尸体完整肘关节标本，在尺侧副韧带前束上、下止点区域分别取各3个定位点，两两配对后分别测量上、下两点之间的距离在各个角度的变化，并进行统计学分析。 结果　肘关节旋转中心至冠突下方尺骨粗隆最高点的距离变化与其他各组相比最小 (P<0.0001)。上止点定位于肘关节旋转中心时距离变化最小，与其它两个上定位点相比差异有显著性(P<0.0001)。 结论　等长重建肘关节尺侧副韧带前束的最佳定位点位于肘关节旋转中心点到冠突下方尺骨粗隆最高点。

Anatomic study of the anchor points of anterior bundle isometric reconstruction of elbow ulnar collateral ligament

Objective　To find the optimal anchor points of anterior bundle isometric reconstruction of the elbow ulnar collateral ligament through anatomic study.　Methods　3 anchor points were marked near both proximal and distal ends of the anterior bundle of the elbow ulnar collateral ligament on 8 intact human adult elbow specimens. The distance variation was measured in each pair of points on both sides while flexing the elbow from 0 degree to 120 degree and was analysed statistically.　Results　Distance variation of the pair from the elbow rotation center on the humeral medial epicondyle to ulnar subcoronoid tubercle was minimal (P<0.0001). When proximal points were fixed on elbow rotation center, the distance variation was significantly less than the other 2 proximal points with significant difference (P<0.0001).　Conclusion　The optimal anchor points of the anterior bundle isometric reconstruction of the elbow ulnar collateral ligament is elbow rotation center on the humeral medial epicondyle and ulnar subcoronoid tubercle;